I looked at this for a few minutes, and it seems strange that it works at all (at boot) since networkd sets the ipv6 mtu before bringing the link up, but the kernel resets the ipv6 mtu to the device mtu on link up. I must be missing something.
I looked at this for a few minutes, and it seems strange that it works at all (at boot) since networkd sets the ipv6 mtu before bringing the link up, but the kernel resets the ipv6 mtu to the device mtu on link up. I must be missing something.